Recursion-key pad codes

#1


whats wrong in this code?

#2

instead of writing ans=ansx3 you have to write
ans+=ansx3;

#3

it is not correct for all test cases

#4

check again it is passing all testcases

#5

check it for input=19…
image
ans should 6 but it is giving 9

#6

for(int i=0;i<n;i++){
if(in[i]==‘0’);
else if(in[i]==‘6’)ans=ans4;
else if(in[i]==‘8’|| in[i]==‘9’)ans=ans2;
else ans=ans*3;
}
correct one should be this as in[] is character array so we have to put nos inside single quote

#7

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